Abstract: The relevance of the issue under study is determined by the socio-technological development of the Russian economy where the very notion of profession has lost its initial meaning as an area of social division of labour whereas competitive and sought-after specialists now are transprofessionals, capable of performing a wide range of specialized types of professional activity. The objective of the paper is to describe the phenomenon of transprofessionalism to determine the initial attributes for its understanding and to present a block model of a platform for transprofessional formation. The leading research methods are theoretical (analysis, synthesis, specification, generalization), hypothetico-deductive and project-based. The model of transprofessionalism formation platform was built on the basis of a multi-dimensional, network and process approaches. The paper presents the main arguments which formulate the concept and give preliminary information on the phenomenon of transprofessionalism and on the model of the vocational educational platform for its formation in the subjects of professional activity. The materials of the study can be useful for teachers of the vocational education system, implementing professional training of future specialists.